{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-56601", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-27T14:03:06.011Z", "datePublished": "2024-12-27T14:51:07.358Z", "dateUpdated": "2026-08-05T11:45:21.714Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:45:21.714Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: inet: do not leave a dangling sk pointer in inet_create()\n\nsock_init_data() attaches the allocated sk object to the provided sock\nobject. If inet_create() fails later, the sk object is freed, but the\nsock object retains the dangling pointer, which may create use-after-free\nlater.\n\nClear the sk pointer in the sock object on error." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The vulnerable code is only reachable through the local `socket(2)` syscall path (`__sock_create` → `inet_create`); no remote peer input is involved. Exploitation requires the attacker to execute code on the target system.\nAC:L - The failure paths are triggered deterministically and unconditionally by an attacker-chosen syscall — `socket(AF_INET, SOCK_DGRAM, IPPROTO_ICMP)` fails in `ping_init_sock()` with -EACCES under the common default `ping_group_range` of \"1 0\", and the attacker can repeat it arbitrarily to groom the heap. No race and no attacker-uncontrollable precondition is involved.\nPR:L - Any ordinary unprivileged local user can call `socket()`; the ICMP-datagram and MPTCP paths involve no capability check at all, and the `SOCK_RAW` variant's `CAP_NET_RAW` is `ns_capable(net->user_ns, ...)`, obtainable via `unshare -Urn`.\nUI:N - The attacker triggers the whole sequence from their own process with a single syscall; no action by any other user or administrator is needed.\nS:U - The dangling pointer and any resulting corruption stay within the kernel's own security authority — this is a standard local kernel memory-safety issue with no VM, IOMMU, or sandbox boundary crossed.\nC:H - `sock->sk` is left pointing at a `struct sock` already freed by `sk_common_release()`; any subsequent dereference reads reclaimed slab memory whose contents the attacker can spray, yielding disclosure of kernel data and pointers.\nI:H - A use-after-free on a `struct sock` — an object dense with function pointers (`sk_destruct`, `sk_backlog_rcv`, `sk_prot` ops) — gives an attacker who reclaims the freed slab a write/control-flow-hijack primitive, so integrity impact must be treated as High.\nA:H - Dereferencing the stale `sk` pointer corrupts or faults on freed memory, producing a kernel oops or panic; the trigger is a single unprivileged syscall that can be repeated at will." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/ipv4/af_inet.c" ], "versions": [ { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "f8a3f255f7509a209292871715cda03779640c8d", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "2bc34d8c8898ae9fddf4612501aabb22d76c2b2c", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "3e8258070b0f2aba66b3ef18883de229674fb288", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "b4513cfd3a10c03c660d5d3d26c2e322efbfdd9b", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "25447c6aaa7235f155292b0c58a067347e8ae891", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "691d6d816f93b2a1008c14178399061466e674ef", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "9365fa510c6f82e3aa550a09d0c5c6b44dbc78ff", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/ipv4/af_inet.c" ], "versions": [ { "version": "2.6.12", "status": "affected" }, { "version": "0", "lessThan": "2.6.12", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.287", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.231", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.174", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.120", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.66", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.5", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.13", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.4.287" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.10.231" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.15.174" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.1.120" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.6.66" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.12.5" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.13" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/f8a3f255f7509a209292871715cda03779640c8d" }, { "url": "https://git.kernel.org/stable/c/2bc34d8c8898ae9fddf4612501aabb22d76c2b2c" }, { "url": "https://git.kernel.org/stable/c/3e8258070b0f2aba66b3ef18883de229674fb288" }, { "url": "https://git.kernel.org/stable/c/b4513cfd3a10c03c660d5d3d26c2e322efbfdd9b" }, { "url": "https://git.kernel.org/stable/c/25447c6aaa7235f155292b0c58a067347e8ae891" }, { "url": "https://git.kernel.org/stable/c/691d6d816f93b2a1008c14178399061466e674ef" }, { "url": "https://git.kernel.org/stable/c/9365fa510c6f82e3aa550a09d0c5c6b44dbc78ff" } ], "title": "net: inet: do not leave a dangling sk pointer in inet_create()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2024-56601", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2025-02-11T15:42:25.967090Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-11T15:45:24.011Z" } }, { "title": "CVE Program Container", "references": [ { "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html" }, { "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T20:50:40.940Z" } } ] } }